Multi-Series Line Chart (Lab 3)
This multi-series line chart displays daily average temperatures for New York, San Francisco, and Austin over a year, with each city color-coded and labeled. It highlights the minimum and maximum temperature points for each series with annotated text. The visualization loads a TSV file using d3.tsv, parses dates with d3.timeParse, and encodes time on the x-axis with d3.scaleTime and temperature on the y-axis with d3.scaleLinear. Lines are drawn using d3.line, axes created with d3.axisBottom and d3.axisRight, and colors assigned via d3.scaleOrdinal with d3.schemeCategory10. All marks render as SVG.
AI-generated descriptionThis line chart is constructed from a TSV file storing the daily average temperatures of New York, San Francisco and Austin over the last year. The chart employs conventional margins and a number of D3 features:
- d3.tsv - load and parse data
- d3.time.format - parse dates
- d3.time.scale - x-position encoding
- d3.scale.linear - y-position encoding
- d3.scale.category10, a d3.scale.ordinal - color encoding
- d3.extent, d3.min and d3.max - compute domains
- d3.keys - compute column names
- d3.svg.axis - display axes
- d3.svg.line - display line shape
forked from <a href='http://bl.ocks.org/mbostock/'>mbostock</a>'s block: <a href='http://bl.ocks.org/mbostock/3884955'>Multi-Series Line Chart</a>